Archive webpage every day

Ok, I am trying to figure out a way that I can archive a certain webpage every day. The URL does not change, but the content does. I would like to be able to look at these pages over a period of time for analysis.

Does anyone know of any free software that will do this? Some way for excel to create a new tab for each day? Something?

If you're using Windows, get wget (http://pages.interlog.com/~tcharron/wgetwin.html) and create a scheduled task for it.

Thanks Mict. Now to figure out how to get it to auto-increment the filenames, or create them based on the date.

It's a start though :)